A compass, is a drawing tool. It can also measure distances on a drawing or maps. Compasses are used in geometry, and design.
Compasses are usually made of metal, plastic or a combination of both. A simple compass has a hinge.
The hinge, which can be tightened with a screw driver, can be adjusted. This allows the arm to move changing the radius.
One part, (the needle point) has a solid sharp point at its end. The other end may have a pencil, a scriber ( a sharp-pointed tool for marking a circle on metal), or a marker to draw a colorful circle.
I purchased the bar compass at Loeb’s for about fifteen dollars.
Bar or beam compasses allow you to draw much larger circles and arcs.
Compasses are usually made of metal, plastic or a combination of both. A simple compass has a hinge.
The hinge, which can be tightened with a screw driver, can be adjusted. This allows the arm to move changing the radius.
One part, (the needle point) has a solid sharp point at its end. The other end may have a pencil, a scriber ( a sharp-pointed tool for marking a circle on metal), or a marker to draw a colorful circle.
I purchased the bar compass at Loeb’s for about fifteen dollars.
Bar or beam compasses allow you to draw much larger circles and arcs.
Bar Compass
Carpenters's Compass
The Circle, Compass and Protractor
Circle Protractor
When I introduced the Circle Protractor in my classroom I soon followed with the compass. A compass is used to draw circles or arcs. A circle protractor is used to measure angles and draw shapes. The combination of the two make the perfect design team.
Compass Beam Saddle
Three Beam Compasses
I used steel, copper and wood to make these beam compasses.
This compass beam saddle is made from mahogany which is a type of hardwood. The saddle not only hold the marker which my students used everyday but also the beam which is made from copper.